STPM32 - STMicroelectronics

STPM32 ASSP

The STPM3x is an ASSP family designed for high accuracy measurement of power and energies in power line systems using the Rogowski coil, current transformer or shunt current sensors. The STPM3x provides instantaneous voltage and current waveforms and calculates RMS values of voltage and currents, active, reactive and apparent power and energies. The STPM3x .

Features

• Active power accuracy:
  – < 0.1% error over 5000 : 1 dynamic range
  – < 0.5% error over 10000 : 1 dynamic range
• Exceeds 50-60 Hz EN 50470-x, IEC 62053-2x, ANSI12.2x standard requirements for AC watt meters
• Reactive power accuracy:
  – < 0.1% error over 2000 : 1 dynamic range
• Dual mode apparent energy calculation
• Instantaneous and averaged power
• RMS and instantaneous voltage and current
• Under and overvoltage detection (sag and swell) and monitoring
• Overcurrent detection and monitoring
• UART and SPI serial interface with programmable CRC polynomial verification
• Progra.